12results about How to "Fully exposed" patented technology

A high-load cobalt-based single-atom catalyst for oxygen reduction and its preparation method are disclosed, belonging to the field of electrocatalysis technology. This method utilizes the cage structure in ZnCo-ZIF to encapsulate nitrogen-rich metal molecules, followed by high-temperature carbonization under nitrogen conditions to obtain the catalyst. Benefiting from the separating effect of Zn metal nodes in ZIF and the spatial confinement effect of the ZIF cages, as well as the high nitrogen content in the guest molecule, a cobalt-based single-atom catalyst with a loading of 4.0 wt% was prepared. Furthermore, compared to traditional preparation methods, the catalyst prepared using a mixed solvent exhibits a small particle size, resulting in a high specific surface area that fully exposes the active sites. The large specific surface area allows for the full exposure of the high-load metal atom active sites, thus demonstrating excellent performance in the oxygen reduction reaction, with a half-wave potential of 0.88 V and a limiting current density of 6.0 mA·cm⁻¹ in 0.1 M KOH electrolyte. ‑2 .

The utility model relates to a car technical field especially, it is a kind of central hand box refrigeration structure, including central hand box, condenser pipe, semiconductor refrigeration module, shroud and heat dissipation pipeline, wherein, central hand box inside is equipped with refrigeration space;Condenser pipe is embedded in the lateral wall of refrigeration space, and its both ends are communicated with the refrigerant circulation pipeline of car air conditioning system by pipeline;Semiconductor refrigeration module cold end is embedded in the lateral wall of refrigeration space, and hot end is placed in the inside of shroud;Shroud is fixed in the inside of central hand box;One end of heat dissipation pipeline is communicated inside shroud, and the other end is communicated to engine cabin, and exhaust fan is embedded in the inside of heat dissipation pipeline;The utility model proposes a kind of central hand box refrigeration structure, it is additionally equipped with semiconductor refrigeration module as auxiliary cold source, can carry out cold supplement to refrigeration space under the condition that vehicle is temporarily extinguished, effectively inhibits the temperature rise in refrigeration space, and reduces temperature fluctuation, guarantees the continuity and stability of refrigeration effect.

This invention discloses a highly hydrophilic organic solvent reverse osmosis membrane, its preparation method, and its applications. The organic solvent reverse osmosis membrane comprises a cross-linked polyimide porous support layer, a polyamide separation layer, and a surface grafting layer. The surface grafting layer is formed by the amidation reaction of D-glucosamine with residual acyl chloride groups on the surface of the polyamide separation layer via its primary amino group. This invention utilizes a D-glucosamine / ethanol solution to modify the surface of the nascent polyamide membrane, grafting D-glucosamine through a secondary interfacial reaction to avoid hydrolysis of residual acyl chloride groups, while simultaneously introducing a large number of hydroxyl groups onto the membrane surface. The prepared membrane exhibits significantly enhanced hydrophilicity, greatly increasing the permeation flux of polar organic solvents while maintaining a high solute rejection rate. The preparation method of this invention is simple, low-cost, and easy to scale up, showing broad application prospects in the field of polar organic solvent separation and recovery.

This invention discloses a hierarchical porous material with catalytic activity, its preparation method, and its application. A photosensitive resin is obtained by stirring and reacting a halogen-containing photopolymerizable ionic liquid monomer, a photopolymerizable monomer, a multifunctional crosslinking agent, a non-reactive porogen, a photoinitiator, and a light absorber. The photosensitive resin is then placed in a 3D printing device to print a preform. The preform is placed in a supercritical drying device, where liquid CO2 is used as the medium for extraction and displacement. Subsequently, the temperature and pressure are increased to above the supercritical point of CO2, and the hierarchical porous material with catalytic activity is obtained through supercritical drying. This invention introduces highly nucleophilic halide ion sites and utilizes photopolymerization 3D printing and polymerization-induced phase separation technology to construct a hierarchical porous material that combines macroscopically customized flow channels with microscopically interconnected pores. This material, as a catalyst, can achieve highly efficient catalysis of the cycloaddition reaction of CO2 and epoxides under mild conditions.

The utility model relates to a kind of full-automatic multi-slot vacuum carbon hydrogen cleaning machine, including rack, multiple for storing the roller of pending cleaning work, respectively set on the feeding unit of rack, ultrasonic degassing cleaning unit, ultrasonic vacuum cleaning unit, at least one vacuum drying unit, discharging unit, handling unit, vacuum unit and distillation recovery system;The feeding unit, ultrasonic degassing cleaning unit, ultrasonic vacuum cleaning unit, vacuum drying unit, discharging unit site are placed in line in turn side by side;The handling unit is used to transfer roller between feeding unit, ultrasonic degassing cleaning unit, ultrasonic vacuum cleaning unit, vacuum drying unit, discharging unit, and can drive roller rotation in transfer process;The utility model is rotated by adopting roller to replace traditional fixed cleaning frame, and is combined with the core design of handling unit in transfer process drive roller rotation, not only realizes dynamic tumbling, completely solves accumulation dead angle, and can significantly improve cleaning and drying efficiency.

The utility model discloses a kind of garbage incineration slag electromagnetic sorting equipment, it is related to slag electromagnetic sorting technical field, and it includes: material conveying assembly, the material conveying assembly includes support frame, and the support frame is equipped with material conveying belt;Electromagnetic sorting mechanism, the electromagnetic sorting mechanism includes rack, and the rack is across on material conveying assembly, and the right part of the rack is equipped with first belt, and the first belt is nested with first de-ironer, and the left part of the rack is equipped with second belt, and the inside of the second belt is nested with second de-ironer, and the upper side middle part of the rack is equipped with multiple stirring assembly, and the rack is equipped with the driving component of driving multiple stirring assembly synchronous rotation. The utility model can effectively separate iron impurities in slag by twice electromagnetic sorting and the auxiliary stirring of stirring assembly, greatly improves the thoroughness of sorting.

This invention discloses a cubic Ru / Co3O4 catalyst, its preparation method, and its applications, belonging to the field of electrode material technology. The method includes the following steps: S1, dissolving cobalt nitrate hexahydrate and hexadecyltrimethylammonium bromide in water, dissolving 2-methylimidazole in water, mixing and stirring to obtain a Co-MOF; S2, calcining the Co-MOF to obtain a Co3O4 cube; S3, dissolving the Co3O4 cube and ruthenium trichloride in water, and performing a hydrothermal reaction to obtain the cubic Ru / Co3O4 catalyst. This invention employs a preparation sequence of "calcination followed by hydrothermal loading," ensuring that Ru species are mainly distributed on the surface of the Co3O4 cube, avoiding Ru species embedding and agglomeration caused by high-temperature calcination. The resulting catalyst has a regular cubic morphology, uniform Ru dispersion, and high catalytic activity, showing broad application prospects in electrocatalytic oxygen evolution and hydrogen evolution.

This invention relates to a composite repair method for bevel drive gears, belonging to the field of gear repair technology. This invention combines the structure of the bevel drive gear with continuous drive friction welding technology, using additive manufacturing through continuous drive friction welding to repair the gear. This solves the problems of difficult procurement and high cost of using bevel drive gears in auxiliary power units, achieving cost reduction and efficiency improvement.

This invention provides a 1D / 2D dual piezoelectric photocatalytic composite material, its preparation method, and its application, relating to the field of wastewater treatment technology. The 1D / 2D dual piezoelectric photocatalytic composite material of this invention comprises a heterojunction structure consisting of one-dimensional rod-shaped barium titanate and a two-dimensional bismuth-rich halide oxide; the one-dimensional rod-shaped barium titanate is rod-shaped BaTiO3 grown along the c-axis orientation; the two-dimensional bismuth-rich halide oxide is Bi... x O y X z X is at least one of Cl, Br, or I; the BaTiO3 and Bi x O y X z The molar ratio is (1-10):(1-10); the lattice matching degree of the heterojunction is >90%. This invention constructs a 1D / 2D dual piezoelectric heterojunction structure with high lattice matching degree, combined with a curing method involving chemical bonding of a hydroxylated modified layer and a silane coupling agent, and uses an aeration-driven approach to achieve synergistic enhancement of piezoelectric effect and photocatalytic performance. This significantly improves carrier separation efficiency and catalyst stability, reduces energy consumption, and provides a new direction for the efficient treatment of organic wastewater, showing promising application prospects.

This invention belongs to the field of novel pollutant removal technology, disclosing a photocatalyst, its preparation method, and its application in antibiotic degradation. The invention first synthesizes a hydroxyl organic amine imine cage, and then prepares a flexible hydroxyl organic amine cationic cage with abundant N sites through a series of structural modifications. The N sites of the molecular cage are used to stabilize a photosensitive metal salt. By reducing the photosensitive metal salt, photosensitive metal nanoclusters are obtained and immobilized in the cavity or framework sites of the molecular cage to obtain a photocatalyst. Due to its small photosensitive metal nanoparticle size, fully exposed catalytic active sites, and good water solubility, this catalyst, utilizing the homogeneous catalyst principle, exhibits advantages such as high degradation efficiency, wide variety of antibiotics in wastewater, and good reusability, making it suitable for the purification treatment of biochemical wastewater in sewage treatment plants.

The application relates to the technical field of energy storage materials, and discloses a preparation method of a quasi-parallel arrangement structure MXene-rGO material loaded with RuO2 quantum dots and application of the quasi-parallel arrangement structure MXene-rGO material loaded with RuO2 quantum dots in a practical horizontal loading electrode. GO and MXene colloid are mixed, heated and gelled, and then immersed in a RuCl3 solution; the pH value is adjusted to 7 by using a NaOH solution to form a MXene-rGO hydrogel loaded with Ru(OH)3; after washing, drying and annealing, a MXene-rGO-RuO2 composite material is obtained. In the preparation process, the loading of Ru(OH)3 causes the mechanical flexibility of the two-dimensional nanosheet layer to decrease, and hydrogen bonds are formed with the end groups, so that the two-dimensional nanosheet layer is in a quasi-parallel arrangement structure, and the ion diffusion limitation in the practical horizontal loading electrode is reduced. The hydrogel structure and proper Ru 3+ immersion liquid ensure that Ru 3+ quantum dots are uniformly distributed, and the electrochemical active sites are fully exposed.

The utility model provides a kind of construction waste magnetic separation metal device, belong to waste recovery technical field, including box, the inside of the box is provided with magnetic separation mechanism, the inside of the magnetic separation mechanism is provided with drying assembly, the top of the box is provided with conveying assembly in one side. The utility model is provided with magnetic separation mechanism, when using, start second motor, drive fixed link, crushing blade and crushing knife rotation, can be crushed and handled to construction waste, crushed waste falls on conveyer belt, starts first motor, makes rotating roller and magnetic roller drive conveyer belt rotation, magnetic roller adsorbs ferromagnetic metal in waste, non-metal material naturally falls to discharge port, to realize the separation of metal and non-metal, the drying assembly is set, start dryer, gas is conveyed to gas outlet by gas pipe, drying treatment is carried out to crushed waste, damp waste is easy to cake, leading to magnetic roller difficult to effectively adsorb, improve adsorption rate after drying.